Well I haven't had a chance to see how the radiator works because I decided to buy mine used to try and save a few bucks. And well, you know how to do it. It arrived, I saw the damage it had received from the previous owner when he installed it by punching two holes in it. Then water poured out of the bolt hole, now that it happened I suspect he stuck a bolt in too long and blew through the tank. Huge waste of time if I had only paid to buy a new one because I need it now. Now I have to wait longer to get back on the road. I will never buy anything used again.